S3 HEAD object support

[tomekit]

Which AWS Services is the feature request for?
S3

Is your feature request related to a problem? Please describe.
I am using newest available: "com.amazonaws:aws-android-sdk-s3:2.52.1"

I need to get object metadata without reading the actual S3 object data.
That's part of S3 API: https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html

Describe the solution you'd like
Similarly to existing GetObjectRequest class and getObject function there could be:
HeadObjectRequest and headObject respectively

Describe alternatives you've considered
I was thinking of using the Java SDK instead of Android SDK which does support that:
https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/s3/model/HeadObjectRequest.html

I am not sure about the implications of using non-Android SDK on Android.

Additional context
HEAD object is pretty critical part of S3 API.
I was wondering why this hasn't been implemented in Android SDK.

Is it a clear concise design decision or perhaps it was somehow forgotten?